Painting instrument



N0" 3, 1931. M, cHRlSTMAN 1,830,089

PAINTING INSTRUMENT Filed March 24, 1928 my all? L UHN H. CHRISTMHN.

Patented Nov. 3, 1931 UNITED STATES PATENT OFFICE j JOHN M. CHRISTMAN, OF DETROIT, MICHIGAN, ASSIGNOR, BY MESNE ASSIGNMENTS, TO f PACKARD MOTOR. CAR COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN PAINTING INSTRUMENT Application filed March 24, 1928. Serial No. 264,332.

This invention relates to painting instruments and more particularly to striplng 1nstruments.

An object of the invention is to provide an instrumentfor painting stripes of uniform width. I

Another object of the, invention is to provide an instrument for painting stripes 1n perfect alinement.

' Another object of the invention is to provide a striping instrument adapted to be used in cooperation with a bead or a straight edge having a curvedface and to construct the instrument so that all danger of disalinement is avoided in the manipulation thereof.

Another object of this invention is to provide a striping instrument with an improved handle permitting twisting the wrist of the operator without disalining the instrument.

Another object of the invention is to provide a striping instrument having a handle so arranged and'constructed that any slight movement of the hand or Wrist of the operator will in no way affect the position of the instrument relative to the work under treatment.

A further object of the invention is to pro vide a striping instrument having a detachable handle provided with means for supporting a chamber and auxiliary guide for the instrument.

A further object of the invention is to provide a striping instrument having a detachable handle provided with an auxiliary guide arranged to engage ahead or straight edge having a curved face to prevent all liability of disalinement in the manipulation thereof.

A still furtherobject ofthe invention is to provide a striping instrument having a chamber and a nozzle witha pumping mechanism interposed and a driving means for the pumping mechanism, the driving means serving as a-guide and an auxiliary guide coacting with the driving means to maintain the instrument in alinement,the auxiliary guide being positioned and arranged so that it will maintainv the instrument in alinement, thereby preventing any wave in the stripe.

Other objects of the invention will appear from the following description taken in connection with the drawings, which form a part of this specification, and in which:

Figure 1 is a side elevation partly in section, j

Figure 2 is a front elevationpartly broken away,

Figure 3 is a side elevation with the face plate removed, the container and handle being broken away,

Figure 4 is a view similar to Fig. 3 with the handle removed and partly in section the better to illustrate the connections between the chamber and the nozzle and the pump mechanism,

Figure 5 is a cross sectional view taken through the driving means,

Figure 6 is a bottom plan view illustrating the application of the detachable handle, and

Figure 7 is a side elevation of the instrument also illustrating the application of the detachable handle.

Referring to the drawings for more specific details of the invention, 10 represents the body of the instrument having secured therein and projecting normal from one side thereof a sleeve 11 provided with aradial flange 12 which abuts the body and constitutes a portion of a ball race 13'. A shaft 14 journaled in the sleeve has on one end ahead 15 and in the other end a diametral bore. Aspool 16 provided with an inner annularshoulder 17 for the reception of ball bearings 18 .is mounted on the sleeve 11 and keyed to the shaft 14, by a pin '19 passing through the diametral bore in the shaft and engaging notches in the end of the spool. The spool 16 has a circumferential groove 20 adapted to engage a bead or curved face on a straight edge. This spool constitutes a guide for the instru ment and a driving member for the shaft 14 for operating a pump mechanism to be hereinafter described.

The body 10 is provided with a tapering bore 21 in which is positioned a tapering plug 22 secured in place by a nut 23 threaded upon the smaller end thereof. The plug 22 is pro vided with an enlarged head 2% and an axial bore 25. This plug also has a circumferential groove 26 communicating with the axial bore 'throu'gh' radial bores 27, the object of which will hereinafter appear. The head of the plug is provided with a radial bore 28 communicating with the axial bore and positioned in the radial bore 28 is a reduced end 5 29 formed on one end of a chamber 30, the chamber being provided with a threaded cap 31 apertured as indicated at 32 to provide a suitable vent.

, Keyed upon the shaft 14 is a gear 33 in mesh with a corresponding gear 34. Opening above and between the gears 33 and 34 is a passage 35 communicating with the circumferential groove 26 in the plug 22 and opening belowand betweenthe gears33 and 34 is a passage 36 communicating with a passa e 37 leading toanozzle 3& Thegear Misheil in mesh with the gear 33 by a plate 39. provided with overlapping transverse bores 40 and 41 which fit around the. eripheries of. the ,gearsfiii and 34 ,the late ing secured in position bya face p ate 42 secured to the 1.0 by screws 43. The face plate 42 has its respective ends bent normal to its body portion and provided with oppositely projecttrunnions 44 positioned, substantiall diametrically with respect to the center 0 the guide roller 16 and nozzlev 38 so that the in strument will have a proper balance when used with the bow or yoke handle to be hereinafter described.

The body portion 10 is provided with a boxer lug-45 projecting overthe guide. 16 and threaded into this lug in a substantially central. pmition with respect to the center of the roller 16Jand the outlet of the nozzle 37 is, a demountable shaft 46. As, shown, the shaft 46 has formed adjacent the threaded end thereof a. shoulder 4'1 and. provided u the other end with a shoulder 48 anda head 49. Mounted for rotation upon. the shaft 46 is a, cylinder 50 knurled as. indicated atv 51. This cylinder provided with flanges 52. and 53 which engagcthe shoulders 47 and 48. on the shaft, 46 so that the cylindrical ortion or grip of the haudlemay revolve free y upon. the. shaft with as little friction as possible to permit. the mani .ulation of the instrument without da er disalinementby atwisting of the wrist ue to the grip which an operator generally has upon the. handle,

F' ure 7 illustrates the application of a detac e handle. As shown,thishandle comises a bow or yoke 54 provided with a cross air 55 adapted to support the barrel or chamber 30. The free endsiof the bow or yoke are provided with apertures.- for the reception of the trunnions 44 and arranged upon one end of the. yoke is an. arm fifi inclined from the. handle to su portaguide member a 57 in alinementwith t e guide roller. 16 providing a double guide. for the instrument to insure against disalinement. As shown, the guide. member 57 consists of a block havinga centralgroove or: channelefi with. convex side 6 wallsfit) and beveled ends 60 This guide on gages a bead or molding and slides freely thereon, and to compensate for the slightest variance in the molding or straight edge with which the instrument is used, the block 57is pivoted as indicated at 61 and its oscillatory movement is limited by a pin 62poaitioned in an apcrturefiSin the block, the aperture 63 having a greater diameter than the pin.

In operation, asuming'that the chamber is filled with a liquid aint, the instrument is adjusted to the wor whenthe roller 16, which is a guide as well as a driving means, engagzs the-bead or straight edge as the case may Upon adjustment of the instrument to the work and drawing the instrument over the work, the roller 16 drives the pump mechanism which pum the paint from the chamber 30 through t e passages leading from the chamber to and through the pump mechanism and thence to and throu h the nozzle. In the manipulation of the lIlStIlb merit-the; possibility of disalinemcnt is nil, since any slight twist of the operators wrist will in no way affect the position of the instrument owing to the rotatable character of the handle permitting a slight movement of the wrist without changing the position of the instrument.

Although this invention has been described in connection with certain specific embodiments the princi les involved are susceptible of, numerous 0t er applications. that will readily occur to rsons skilled in the art. The invention is, t ierefore, to be limited only a indicated by the scope of the appended claims.

'Having thus described the various fea- P tures. of my invention, what I claim as. new

and desire to secure by Letters Patent is:

1. In a. stri ing instrument the combination with ac amber, a nozzle and a pump connected therebetween, of a driving means for the pump comprising a sleeve having a radial flange, a shaft j ournaled in the. sleeve,

a roller. on the sleeve, the roller having an annular recess for the reception of the flange, the, face of the roller having a circumferential, groove and meansfor keying the roller to theshaft.

2. In a. striping instrument, the combination with a chamber, a nozzle and a pump connected therebetween, of a driving means for the. pump comprising a. sleeve having a radial flange, a shaft journaled in the sleeve, a roller on the sleeve, the roller having an annular recess cooperating with the flange on the. sleeve to provide a ball race, ball bearin inthe race anda diametral pin securing t5 roller to the shaft.

"3.. In a striping imtrument, the combiw tion with a body, a chamber pivoted thereon, a nozzle on thebody and a pum connectedbetween the chamber and the nozzle, of a handle tor the. body, the handle. having a V rotatable grip.

4. In a striping instrument, the combination with a body, a chamber pivoted thereon, a nozzle on the body and a pump positioned in the body and connected between the chamber and the nozzle, of a roller for driving the pump, an offset on the body, a handle supported by the offset and a rotatable grip on the handle.

5. In a striping instrument, the combination with a body, a chamber pivoted thereon, a nozzle on the body and a pump connected therebetween, of an offset on the body, a detachable handle supported by the offset, the handle positioned over one end of the roller and forwardly of the nozzle to provide a proper balance for the instrument and a rotatable grip on the handle.

6. In a striping instrument, the combination with a body, a chamber pivoted thereon, a nozzle on the body and a pump connected therebetween, of a detachable handle comprising a fixed shaft having a cylindrical grip rotatably positioned thereon.

7. In a striping instrument, the combination with a body, a chamber pivoted thereon, a nozzle on the body and a pump in the body connected between the chamber and the nozzle, of a detachable handle having means whereby the grip thereof may be rotated without displacing the instrument.

8. In a striping instrument the combination with a body, a chamber pivoted thereon, a nozzle on the body, a pump connected between the chamber and the nozzle and a driving means for the pump, of a detachable handle secured to the body portion, said handle having means whereby rotative movement may be imparted thereto without affecting the instrument.

9. In a striping instrument, the combination with a body, a chamber thereon, a nozzle on the body and a pump positioned in the body and connected between the chamber and the nozzle, of a roller for driving the pump, an offset 011 the body and a handle supported by the offset.

In testimony whereof I afiix my signature.

JOHN M. CHRISTMAN. 

